Cisco IOS up to 12.2ym denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco IOS up to 12.2ym. The affected element is an unknown function. The manipulation leads to denial of service. This vulnerability is listed as CVE-2009-2866. There is no available exploit.

Detailsinfo

A vulnerability was found in Cisco IOS up to 12.2ym (Router Operating System) and classified as critical. This issue affects an unknown code. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

Unspecified vulnerability in Cisco IOS 12.2 through 12.4 allows remote attackers to cause a denial of service (device reload) via a crafted H.323 packet, aka Bug ID CSCsz38104.

The weakness was presented 09/23/2009 with Cisco (Website). It is possible to read the advisory at cisco.com. The identification of this vulnerability is CVE-2009-2866. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 49042 (Cisco IOS Software H.323 Denial of Service Vulnerability - Cisco Systems), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43170 (Cisco IOS Software H.323 Denial of Service Vulnerability (cisco-sa-20090923-h323)).

A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (53446), Tenable (49042), SecurityFocus (BID 36494†), OSVDB (58337†) and Vulnerability Center (SBV-23561†). See VDB-50247, VDB-50246, VDB-50245 and VDB-50244 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• IOS

Version

• 12.2ya
• 12.2yb
• 12.2yc
• 12.2yd
• 12.2ye
• 12.2yf
• 12.2yg
• 12.2yh
• 12.2yi
• 12.2yj
• 12.2yk
• 12.2yl
• 12.2ym

License

• commercial

Website

• Vendor: https://www.cisco.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 49042
Nessus Name: Cisco IOS Software H.323 Denial of Service Vulnerability - Cisco Systems
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/19/2009 🔍
09/23/2009 +35 days 🔍
09/23/2009 +0 days 🔍
09/23/2009 +0 days 🔍
09/23/2009 +0 days 🔍
09/24/2009 +0 days 🔍
09/24/2009 +0 days 🔍
09/28/2009 +3 days 🔍
09/01/2010 +338 days 🔍
03/18/2015 +1659 days 🔍
03/30/2025 +3664 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-2866 (🔍)
GCVE (CVE): GCVE-0-2009-2866
GCVE (VulDB): GCVE-100-50243
X-Force: 53446
SecurityFocus: 36494 - Cisco IOS H.323 Denial of Service Vulnerability
OSVDB: 58337 - Cisco IOS H.323 Implementation Crafted Packet Remote DoS
Vulnerability Center: 23561 - [cisco-sa-20090923-h323] Cisco IOS H.323 Remote DoS Vulnerability, High

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 03/30/2025 00:25
Changes: 03/18/2015 15:15 (59), 02/15/2017 09:17 (9), 08/23/2021 09:15 (4), 08/23/2021 09:19 (1), 03/30/2025 00:25 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

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